As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEVELOPED 1.4K FUEL IMBALANCE. T/O PLUS 45 MINUTES LEFT MAIN 1.4K HEAVIER THAN RIGHT MAIN. ACCOMPLISHED FUEL MIGRATION CHECK FROM RIGHT MAIN TANK TO CENTER MAIN TANK REF 757 FIM 28-21-813 FIG 110 SHT 4 BULK 33. AFTER 1 HR NO FUEL MIGRATION INTO CENTER TANK. SYSTEM CHKS OKAY